Here are the recent changes to the packaging guidelines.
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The packaging guidelines for enabling services by default were significantly revised to emphasize that services starting by default should fail only in exceptional conditions, and to provide additional guidance for services related to hardware enablement.
* https://fedoraproject.org/wiki/Packaging:DefaultServices * https://pagure.io/packaging-committee/issue/777
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The Python guidelines were modified to mention the %pypi_source macro (available in all Fedora and EPEL releases) which conveniently expands to the proper source URL for the package at PyPi.
* https://fedoraproject.org/wiki/Packaging:Python#Source_Files_from_PyPI * https://pagure.io/packaging-committee/issue/759
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The Python guidelines were modified to indicate that packages must not own the top-level __pycache__ directory.
* https://fedoraproject.org/wiki/Packaging:Python#Byte_compiling * https://pagure.io/packaging-committee/issue/782
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A small change was made to the Java packaging guidelines to specify a dependency on javapackages-filesystem instead of javapackages-tools.
* https://fedoraproject.org/wiki/Packaging:Java#BuildRequires_and_Requires * https://pagure.io/packaging-committee/issue/781
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